MB
Miyara Butler
Answers (5)
MB
Answered
If X is a continuous random variable on the interval [0,10],then P(X > 5)= P(X ≥ 5).
On Jun 20, 2024
True
MB
Answered
The exclusive range is more commonly used in research articles when compared to the inclusive range.
On Jun 19, 2024
True
MB
Answered
Solve the linear equation 5−7t=−19+t5 - 7 t = - 19 + t5−7t=−19+t for t .
A) t=3
B) t=-16
C) t=-3
D) t=16
E) t=0
A) t=3
B) t=-16
C) t=-3
D) t=16
E) t=0
On May 21, 2024
B
MB
Answered
Are avid readers more likely to wear glasses than those who read less frequently? Three hundred men in Ohio were selected at random and characterized as to whether they wore glasses and whether the amount of reading they did was above average,average,or below average.The results are presented in the following table. 
This is an r × c table.What is the value of the number r?
A) 2
B) 3
C) 4
D) 6
This is an r × c table.What is the value of the number r?A) 2
B) 3
C) 4
D) 6
On May 20, 2024
B
MB
Answered
Write the system of linear equations represented by the augmented matrix below. Use variables x , y , z , v , and w.
[−4−6−77−9−4−3−3−79−2−1−57−2−7−7−7−73]\left[ \begin{array} { c c c c : c } - 4 & - 6 & - 7 & 7 & - 9 \\- 4 & - 3 & - 3 & - 7 & 9 \\- 2 & - 1 & - 5 & 7 & - 2 \\- 7 & - 7 & - 7 & - 7 & 3\end{array} \right]−4−4−2−7−6−3−1−7−7−3−5−77−77−7−99−23
A) {−4x−6y−7z+7w=−9−4x−3y−3z−7w=9−2x−y−5z+7w=−2−7x−7y−7z−7w=3\left\{ \begin{array} { l } - 4 x - 6 y - 7 z + 7 w = - 9 \\- 4 x - 3 y - 3 z - 7 w = 9 \\- 2 x - y - 5 z + 7 w = - 2 \\- 7 x - 7 y - 7 z - 7 w = 3\end{array} \right.⎩⎨⎧−4x−6y−7z+7w=−9−4x−3y−3z−7w=9−2x−y−5z+7w=−2−7x−7y−7z−7w=3
B) {−4x−6y−7z+7w=−16−4x−3y−3z−7w=6−2x−y−5z+7w=−7−7x−7y−7z−7w=10\left\{ \begin{array} { l } - 4 x - 6 y - 7 z + 7 w = - 16 \\- 4 x - 3 y - 3 z - 7 w = 6 \\- 2 x - y - 5 z + 7 w = - 7 \\- 7 x - 7 y - 7 z - 7 w = 10\end{array} \right.⎩⎨⎧−4x−6y−7z+7w=−16−4x−3y−3z−7w=6−2x−y−5z+7w=−7−7x−7y−7z−7w=10
C) {−4x−6y−7z+7w−9=0−4x−3y−3z−7w+9=0−2x−y−5z+7w−2=0−7x−7y−7z−7w+3=0\left\{ \begin{array} { r } - 4 x - 6 y - 7 z + 7 w - 9 = 0 \\- 4 x - 3 y - 3 z - 7 w + 9 = 0 \\- 2 x - y - 5 z + 7 w - 2 = 0 \\- 7 x - 7 y - 7 z - 7 w + 3 = 0\end{array} \right.⎩⎨⎧−4x−6y−7z+7w−9=0−4x−3y−3z−7w+9=0−2x−y−5z+7w−2=0−7x−7y−7z−7w+3=0
D) {−4x−6y−7z=−9−4x−3y−3z=9−2x−y−5z=−2−7x−7y−7z=3\left\{ \begin{array} { l } - 4 x - 6 y - 7 z = - 9 \\- 4 x - 3 y - 3 z = 9 \\- 2 x - y - 5 z = - 2 \\- 7 x - 7 y - 7 z = 3\end{array} \right.⎩⎨⎧−4x−6y−7z=−9−4x−3y−3z=9−2x−y−5z=−2−7x−7y−7z=3
E) {−4x−6y−7z+7w=0−4x−3y−3z−7w=0−2x−y−5z+7w=0−7x−7y−7z−7w=0\left\{ \begin{array} { r } - 4 x - 6 y - 7 z + 7 w = 0 \\- 4 x - 3 y - 3 z - 7 w = 0 \\- 2 x - y - 5 z + 7 w = 0 \\- 7 x - 7 y - 7 z - 7 w = 0\end{array} \right.⎩⎨⎧−4x−6y−7z+7w=0−4x−3y−3z−7w=0−2x−y−5z+7w=0−7x−7y−7z−7w=0
[−4−6−77−9−4−3−3−79−2−1−57−2−7−7−7−73]\left[ \begin{array} { c c c c : c } - 4 & - 6 & - 7 & 7 & - 9 \\- 4 & - 3 & - 3 & - 7 & 9 \\- 2 & - 1 & - 5 & 7 & - 2 \\- 7 & - 7 & - 7 & - 7 & 3\end{array} \right]−4−4−2−7−6−3−1−7−7−3−5−77−77−7−99−23
A) {−4x−6y−7z+7w=−9−4x−3y−3z−7w=9−2x−y−5z+7w=−2−7x−7y−7z−7w=3\left\{ \begin{array} { l } - 4 x - 6 y - 7 z + 7 w = - 9 \\- 4 x - 3 y - 3 z - 7 w = 9 \\- 2 x - y - 5 z + 7 w = - 2 \\- 7 x - 7 y - 7 z - 7 w = 3\end{array} \right.⎩⎨⎧−4x−6y−7z+7w=−9−4x−3y−3z−7w=9−2x−y−5z+7w=−2−7x−7y−7z−7w=3
B) {−4x−6y−7z+7w=−16−4x−3y−3z−7w=6−2x−y−5z+7w=−7−7x−7y−7z−7w=10\left\{ \begin{array} { l } - 4 x - 6 y - 7 z + 7 w = - 16 \\- 4 x - 3 y - 3 z - 7 w = 6 \\- 2 x - y - 5 z + 7 w = - 7 \\- 7 x - 7 y - 7 z - 7 w = 10\end{array} \right.⎩⎨⎧−4x−6y−7z+7w=−16−4x−3y−3z−7w=6−2x−y−5z+7w=−7−7x−7y−7z−7w=10
C) {−4x−6y−7z+7w−9=0−4x−3y−3z−7w+9=0−2x−y−5z+7w−2=0−7x−7y−7z−7w+3=0\left\{ \begin{array} { r } - 4 x - 6 y - 7 z + 7 w - 9 = 0 \\- 4 x - 3 y - 3 z - 7 w + 9 = 0 \\- 2 x - y - 5 z + 7 w - 2 = 0 \\- 7 x - 7 y - 7 z - 7 w + 3 = 0\end{array} \right.⎩⎨⎧−4x−6y−7z+7w−9=0−4x−3y−3z−7w+9=0−2x−y−5z+7w−2=0−7x−7y−7z−7w+3=0
D) {−4x−6y−7z=−9−4x−3y−3z=9−2x−y−5z=−2−7x−7y−7z=3\left\{ \begin{array} { l } - 4 x - 6 y - 7 z = - 9 \\- 4 x - 3 y - 3 z = 9 \\- 2 x - y - 5 z = - 2 \\- 7 x - 7 y - 7 z = 3\end{array} \right.⎩⎨⎧−4x−6y−7z=−9−4x−3y−3z=9−2x−y−5z=−2−7x−7y−7z=3
E) {−4x−6y−7z+7w=0−4x−3y−3z−7w=0−2x−y−5z+7w=0−7x−7y−7z−7w=0\left\{ \begin{array} { r } - 4 x - 6 y - 7 z + 7 w = 0 \\- 4 x - 3 y - 3 z - 7 w = 0 \\- 2 x - y - 5 z + 7 w = 0 \\- 7 x - 7 y - 7 z - 7 w = 0\end{array} \right.⎩⎨⎧−4x−6y−7z+7w=0−4x−3y−3z−7w=0−2x−y−5z+7w=0−7x−7y−7z−7w=0
On May 19, 2024
A